Merge branch 'linux-2.6' into for-2.6.24

[linux-2.6-omap-h63xx.git] / arch / powerpc / kernel / process.c

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 588c0cb8115e5152c4c658df2bd720cf7972b6e2..15998b57767c8c034a79b02c1726b624ab5144bf 100644 (file)
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -613,6 +613,13 @@ void start_thread(struct pt_regs *regs, unsigned long start, unsigned long sp)
        regs->ccr = 0;
        regs->gpr[1] = sp;
 
+       /*
+        * We have just cleared all the nonvolatile GPRs, so make
+        * FULL_REGS(regs) return true.  This is necessary to allow
+        * ptrace to examine the thread immediately after exec.
+        */
+       regs->trap &= ~1UL;
+
 #ifdef CONFIG_PPC32
        regs->mq = 0;
        regs->nip = start;